Valve-grinder.



E. E. REED.

' VALVE GRINDER.

APPLICATION FILED MAY 15. I917.

1 ,26 6 1 K Patented June 4, 1918.-

citizen of the United States, residin FFIC.

EDWIN E. REED, 0F GUTHRIE, OKLAHOMA.

VALVE-GRINDER.

Specification of Letters Patent.

Patented J mac 4, 1918.

Application filed May 15, 1917. Serial No. 168,711.

To all who'm it may concern:

Be it known that I, EDWIN E. REED, a at Guthrie, in the county of Logan and tate of Oklahoma, have invented certain useful Improvements in Valve- Grinders, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to valve grinders.

This invention aims to provide novel means wherebysteam valves or the like may be quickly, easily and accurately ground by persons not particularly skilled in the mechanical arts and one which will grind the valve seats in such a manner as will insure a tight engagement of the valves therewith irrespective of continued exposure to steam and water and the various sediments carried thereby and apt to accumulate within valve housings.

With the above and other objects in view the present invention consists in the combination and arrangements of parts hereinafter more fully described, illustrated in the accompanying drawings and particularly pointed out in the appended claims, it being understood that changes may be made in the form, proportion, size and minor details without departing from the spirit of and valve cap are removed and the support the invention.

In the drawings: Figure 1 is a sectional end elevation of the invention;

Fig. 2 is a sectional side elevation of the invention;

Fig. 3 is an end view of the support, with the shaft and grinding disk removed; Fig. 4 is a top plan view of the grinding disk removed;

Fig. 5 is an enlarged sectional side view of the grinding disk.

Referring now more particularly to the accompanying drawings, like characters of reference indicate like or similar parts throughout the several views.

The numeral 1 designates a common type of valve housing having a partition 2 upon which a valve seat 3 is formed. The usual valve, val vc stem and valve cap are removed for the insertion of the valve grinder, which is an embodiment of this invention.

A support having a body 4 and diverging legs 5 internally stepped, as at 6, to receive varying valve housing sizesis provided with a vertical bore intermediate the legs 5 for the reception of a vertically movable, rotatably mounted shaft 7 upon one' of the squared ends of which is mounted the hand wheel 8. Upon the opposite squared end. of the shaft 7 is mounted the double concave emery disk 9 for grinding the valve seat 3. A plurality of thumb screws 10 operative within screw threaded bores in the legs 5 are provided to rigidly secure the support upon the housing.

In order to permit inspection of the procass of grinding the support is formed of less thickness than the width of the valve cap opening which it straddles and has a recess 11 formed therein and communicatcurvature of the emery disk embodied in this invention which grinds a curved contact face upon a valve seat and may be reversed when one side has become worn.

In operation, the usual valve, valve stem is mounted astraddle the valve cap opening, with the emery. disk 9 resting upon the valve seat 5. The shaft 7 moves downwardly as the valve seat is ground away by rotation of the emery disk 9.

It is obvious that the invention herein set forth is susceptible to changes and modifications involving mechanical skill ma be made within the scope of the claims wit out departing from the spirit thereof. I do not, therefore, desire to be understood as limiting myself to the precise construction of the parts as shown in the drawings.

Having thus described my invention, I claim:

1. In a means for grinding valve seats, the combination with a valve housing, of a support for the valve grinding means engaging said housing. diverging legs on said support for embracing the valve housing, steps on said legs for adjusting the support to various sizes of valve housings, and means carried by said legs for binding the support to the housing.

2. A valve seat grinder com rising a relsupport, an abrasive element mounted on atively narrow support adapts to be stradthe shaft, means for operating the Shaft, 1-0 dled over a valve housing, legs depending and the support being provided with a refrom the support, steps on the legs for oess on its under face to facilitate inspec- 5 adjusting the support to various sizes of tion of the valve seat during operation of valve housings, means mounted on the legs the grinder.

for binding the support to avalve housing, In testimony whereof I afiix my signature. 15

a vertically movable rotatable shaft in the EDWIN E. REED. 

